Electrical switch.



2 0 m 9 0 e D d e n 6 t a um C W 8 L PM .6 H bT. C E L E I 'No. 7l5,689.

(Application flled Aug. 1902.)

(No Model.)

on w We W m m M C m5 ATTORNEYS v UNITED STATES PATENT OFFICE.

CLARENCE D. PLATT, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO THE BRYANT ELECTRIC COMPANY, OF BRIDGEPORT, CONNECTICUT, A COR- PORATION OF CONNECTICUT.

ELECTRICAL SWITCH.

SPECIFICATION forming part of Letters Patent No. 715,689, dated December 9, 1902.

Application filed August 19,1902. Serial No. 120,220. (No model.)

To all whom it may concern: fer to employ the form of clips illustrated in 40 Be it known that I, CLARENCE D. PLATT, a Figs. 2 and 3. Each clip is shown as consistcitizen of the United States,residing at Bridgeing of two metal plates D D,riveted together at port, Fairfield county, Connecticut, have ind and bent at theirlowerends to embrace arec- 5 vented certain Improvements in Electrical tangular block D of metal, havingalongitudi- Switches, of which the followingis a full, clear, nal opening d for the insertion of the conduc- 45 and exact specification. tor end. A binding-screw d is setin through The main object of my invention is to so the side, as illustrated in Figs. 2 and 3. To construct an electrical switch of the knife two of the clips the pair of knife-blades F, type that the clips can be quickly and readily with their insulated handle f, will be hinged,

fixed in place and will be securely held in poso that when turned down on their hinges 5o sition. the blades may engage with the other two My invention is especially applicable to the clips and close the circuit in the usual Way. construction of the smaller sizes of knife- I claim as my inventionswitches, commonly known as baby knife- 1. An insulating-base for an electrical knife switches. switch, said base having projecting lugs a. in

In the accompanying drawings, Figurel is pairs, with their adjacent faces beveled to a perspective view of the porcelain or other form V-shaped grooves,as and for the purpose insulating base of a baby knife-switch emset forth.

2o bodying my invention. Fig. 2 is a side ele- 2. An insulating-base for an electrical knifevation of the complete switch in the open poswitch, said base having projecting lugs to in sition; and Fig. 3 is an end view, partly in pairs, with their adjacent faces beveled to section, Online 3 3, Fig. 2. form V-shaped grooves, and channels at the On the insulatingbase A of the switch, bottom of the grooves, as and for the purpose as which may conveniently be made of porceset forth.

lain, I form projecting lugs 01., arranged in 3. Anelectricalknifeswitclncomprisingan pairs, there being as many pairs as there are insulating-base having projecting lugs a in clips to be fixed to the base. For a single pairs, with their adjacent'faces beveled to knife-switch having two blades there should form V-shaped grooves in combination with 0 be foursuch pairs of projecting lugs, as shown metallic clips fitted and securedin said groove,

in Fig. 1. The adjacent faces a of the lugs substantially as described. are beveled to form between the lugs of each In testimony whereof I have signed my pair a V-shaped groove, but leaving a longiname to this specification in the presence of tudinal channel b at the bottom of th\(; groove. two subscribing witnesses. 1

3 5 At about the'center of each of these shaped grooves I form an opening through the porce- CLARENCE PLATT' lain base for the insertion of the headed screw Witnesses:

S, by which the metal clip may be secured in SIDNEY N. LOOKWOOD, place and held in the V-shaped groove. I pre- ROBERT WEBER, Jr. 

